helpin my friend to take video for his weddin tml, rented a HD vid cam Panasonic AG-HMC152, which rec AVCHD format... will need to do editing using Premiere CS5 & downsize burned to DVD quality. when switched to 25p with shutter speed off, it's a bit jerky when panning but on shutter 1/60 or 1/200, it looks okay but 50i looks so smooth even with or w/o shutter speed. is 50i means i'm recordin in interlace of NTSC format while 25p is progressive of PAL? when burned to disc n played on normal dvd player, will there be a possibility that videos recorded in 50i can't be played on some dvd player?